203470281

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{75109}}^1$

素因数の和:75165

約数の個数: 24

約数和(自身を含む): 343703360

約数和(自身を除く): 140233079

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 75109, 225327, 525763, 675981, 1577289, 3229687, 4731867, 9689061, 22607809, 29067183, 67823427, 203470281]

約数ペア:

[(1, 203470281), (3, 67823427), (7, 29067183), (9, 22607809), (21, 9689061), (43, 4731867), (63, 3229687), (129, 1577289), (301, 675981), (387, 525763), (903, 225327), (2709, 75109)]